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electrical conductivity, has the SI unit...

electrical conductivity, has the SI unit "ohm-metre”. Identify the physical quantity.

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Electrical resistivity.
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U-LIKE SERIES-CURRENT ELECTRICITY -VERY SHORT ANSWER QUESTIONS
  1. What is the difference between terminal voltage and emf of a cell ?

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  2. A wire of resistivity rho is stretched to twice its length. What will ...

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  3. electrical conductivity, has the SI unit "ohm-metre”. Identify the phy...

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  4. Define electrical conductivity of a metallic wire. Write its SI unit.

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  5. Show variation of resistivity of copper as a function of temperature i...

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  6. Show on a graph the variation of resistivity with temperature for a ty...

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  7. A wire of resistance 8R is bent in the form of a circle. What is the e...

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  8. Define the term 'drift velocity' of charge carriers in a conductor and...

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  9. Write the expression for the drift velocity of charge carriers in a co...

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  10. How does drift velocity of electrons in a metallic conductor vary with...

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  11. A conductor of length L is connected across d.c. source of emf epsi . ...

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  12. Two conducting wires X and Y of same diameter but different materials ...

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  13. I-V graph for a given metallic wire at two temperatures T1 and T2 is a...

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  14. Two wires of equal length, one of copper and the other of manganin hav...

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  15. Nichrome and copper wires of same length and same radius are connected...

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  16. Write an expression for the resistivity of a metallic conductor showin...

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  17. Why are alloys, manganin and constantan used to make standard resistan...

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  18. When electrons drift in a metal from lower to higher potential, does i...

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  19. How does the random motion of free electrons in a conductor get affect...

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  20. Define the term ‘Mobility' of charge carriers in a conductor. Write it...

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